Cyanea horrida


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Cyanea horrida
Species Authority: (Rock) O.Deg. & Hosaka

Assessment Information [top]

Red List Category & Criteria: Critically Endangered D ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Needs updating
Assessor(s): Bruegmann, M.M. & Caraway, V.
Reviewer(s): Maunder, M. (Plant Conservation Committee) & Pollock, C.M. (Red List Programme Office)
Previously assessed as Vulnerable (VU D2) under the 1994 Categories and Criteria. With better information, this is now reassessed as Critically Endangered.

Cyanea horrida is endemic to the island of Maui, Hawaii. It is known from five subpopulations, totaling less than 20 individuals. Threats to the species include pigs, weeds, and possibly rats and invertebrates.
1998 Vulnerable

Geographic Range [top]

Range Description: A palm-like tree known only from East Maui.
United States (Hawaiian Is.)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Riparian habitat. It is restricted to rainforest and the margins of subalpine forest between altitudes of 1,520 and 2,000 m.
Systems: Terrestrial

Threats [top]

Major Threat(s): Threats include pigs, weeds, and possibly rats and invertebrates.

Bibliography [top]

IUCN. 2003. 2003 IUCN Red List of Threatened Species. Downloaded on 18 November 2003.

Oldfield, S., Lusty, C. and MacKinven, A. (compilers). 1998. The World List of Threatened Trees. World Conservation Press, Cambridge, UK.

U.S. Fish and Wildlife Service. 2003. Rare plant database. Unpublished.

Wagner, W., Herbst, D. and Sohmer, S. 1990. Manual of the flowering plants of Hawaii. University of Hawaii Press, Bishop Museum Press, Honolulu.

Wagner, W., Herbst, D. and Sohmer S. 1999. Manual of the Flowering Plants of Hawaii. Bernice Pauahi Bishop Museum Special Publication 91: 1-1918.

Citation: Bruegmann, M.M. & Caraway, V. 2003. Cyanea horrida. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 03 September 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided